Home / 2,557.70-3,840.06-1,325.96

Finding the Fourth Proportional to 2,557.70, 3,840.06 and 1,325.96

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Solution

The fourth proportional to 2,557.70, 3,840.06 and 1,325.96 is: 1,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.70 : 3,840.06 = 1,325.96 : x
  2. Step 2: Convert to fraction form
    2,557.70/3,840.06 = 1,325.96/x
  3. Step 3: Cross multiply
    2,557.70x = 3,840.06 × 1,325.96
  4. Step 4: Simplify right side
    2,557.70x = 5,091,765.96
  5. Step 5: Solve for x
    x = 5,091,765.96/2,557.70
  6. Step 6: Final answer
    x = 1,990.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.